From mboxrd@z Thu Jan 1 00:00:00 1970 Received: from smtp.kernel.org (aws-us-west-2-korg-mail-1.web.codeaurora.org [10.30.226.201]) (using TLSv1.2 with cipher ECDHE-RSA-AES256-GCM-SHA384 (256/256 bits)) (No client certificate requested) by smtp.subspace.kernel.org (Postfix) with ESMTPS id C68C51EA91; Tue, 27 May 2025 16:57:29 +0000 (UTC) Authentication-Results: smtp.subspace.kernel.org; arc=none smtp.client-ip=10.30.226.201 ARC-Seal:i=1; a=rsa-sha256; d=subspace.kernel.org; s=arc-20240116; t=1748365049; cv=none; b=JEOnwwwH8zNqISzmPV8PlBn/WJ4id/NxgTkY7oEVq3uFde7CnKCrFznnB4JGn3gZNAsmDo2I9IXkgANUA5Vzn6xVhPQWaGLRfoIABnSJNEcfX+CsvhAIofimak+35d7j2EtR+iuyhMKeFNf0p+FCRdN3fXgscSdZcuMDiMkwuTw= ARC-Message-Signature:i=1; a=rsa-sha256; d=subspace.kernel.org; s=arc-20240116; t=1748365049; c=relaxed/simple; bh=LTtUkadTrC4v3QHNS24DQ18V4kZ2kAo7eQmjTPhLHgw=; h=From:To:Cc:Subject:Date:Message-ID:In-Reply-To:References: MIME-Version; b=nZmZhzasgtv6sV+5oB59IzR/ParXDE39o+7S9PlkJO3XY6yEgmQl2Vry6ciYaIR0qVFj3zXQ88vUVrHE6IJmy8iVDoFmU6TR5lvnb4uHs7WhOzBqv731ZMTYvBWxco39KEJK+V3BiRAZNTAKoobHdWf0110yoZZSNmqLYnIJPYs= ARC-Authentication-Results:i=1; smtp.subspace.kernel.org; dkim=pass (1024-bit key) header.d=linuxfoundation.org header.i=@linuxfoundation.org header.b=B1YCSCO3; arc=none smtp.client-ip=10.30.226.201 Authentication-Results: smtp.subspace.kernel.org; dkim=pass (1024-bit key) header.d=linuxfoundation.org header.i=@linuxfoundation.org header.b="B1YCSCO3" Received: by smtp.kernel.org (Postfix) with ESMTPSA id 35014C4CEE9; Tue, 27 May 2025 16:57:28 +0000 (UTC) DKIM-Signature: v=1; a=rsa-sha256; c=relaxed/simple; d=linuxfoundation.org; s=korg; t=1748365049; bh=LTtUkadTrC4v3QHNS24DQ18V4kZ2kAo7eQmjTPhLHgw=; h=From:To:Cc:Subject:Date:In-Reply-To:References:From; b=B1YCSCO3gHwJ30GNE3J+9jiECfBrz+XoMQuoou5Fw34J6QItiTi6EoNaTbmSz7dyd r3Upawchn/nj7F4Xf+2KOZWN6im0RxRdjQZaFKoi93TwXAArWp8E+aIbzl7tNCqY64 bcbvkBjcK7YHfl4KsKsbDKW4NaYD/pnKNiKSxdOg= From: Greg Kroah-Hartman To: stable@vger.kernel.org Cc: Greg Kroah-Hartman , patches@lists.linux.dev, Jiasheng Jiang , Jiri Pirko , Vadim Fedorenko , Arkadiusz Kubalewski , Jakub Kicinski , Sasha Levin Subject: [PATCH 6.12 244/626] dpll: Add an assertion to check freq_supported_num Date: Tue, 27 May 2025 18:22:17 +0200 Message-ID: <20250527162454.924535773@linuxfoundation.org> X-Mailer: git-send-email 2.49.0 In-Reply-To: <20250527162445.028718347@linuxfoundation.org> References: <20250527162445.028718347@linuxfoundation.org> User-Agent: quilt/0.68 X-stable: review X-Patchwork-Hint: ignore Precedence: bulk X-Mailing-List: patches@lists.linux.dev List-Id: List-Subscribe: List-Unsubscribe: MIME-Version: 1.0 Content-Transfer-Encoding: 8bit 6.12-stable review patch. If anyone has any objections, please let me know. ------------------ From: Jiasheng Jiang [ Upstream commit 39e912a959c19338855b768eaaee2917d7841f71 ] Since the driver is broken in the case that src->freq_supported is not NULL but src->freq_supported_num is 0, add an assertion for it. Signed-off-by: Jiasheng Jiang Reviewed-by: Jiri Pirko Reviewed-by: Vadim Fedorenko Reviewed-by: Arkadiusz Kubalewski Link: https://patch.msgid.link/20250228150210.34404-1-jiashengjiangcool@gmail.com Signed-off-by: Jakub Kicinski Signed-off-by: Sasha Levin --- drivers/dpll/dpll_core.c | 5 ++++- 1 file changed, 4 insertions(+), 1 deletion(-) diff --git a/drivers/dpll/dpll_core.c b/drivers/dpll/dpll_core.c index 1877201d1aa9f..20bdc52f63a50 100644 --- a/drivers/dpll/dpll_core.c +++ b/drivers/dpll/dpll_core.c @@ -443,8 +443,11 @@ static void dpll_pin_prop_free(struct dpll_pin_properties *prop) static int dpll_pin_prop_dup(const struct dpll_pin_properties *src, struct dpll_pin_properties *dst) { + if (WARN_ON(src->freq_supported && !src->freq_supported_num)) + return -EINVAL; + memcpy(dst, src, sizeof(*dst)); - if (src->freq_supported && src->freq_supported_num) { + if (src->freq_supported) { size_t freq_size = src->freq_supported_num * sizeof(*src->freq_supported); dst->freq_supported = kmemdup(src->freq_supported, -- 2.39.5